Java Fundamentals 1 Exercise 8 - with Zero value check

Java
1

It’s a little long but implements DRY

public class Main {

public static void main(String[] args) {
    /* Requirements:
    *  If number is divisible by 5, print Fizz
    *  If number is divisible by 3, print Buzz
    *  If number is divisible by both 5 and 3, print FizzBuzz
    *  If number is not divisible by both 5 or 3, print the same number
    */
    Scanner scanner = new Scanner(System.in);
    System.out.print("Enter a number: ");
    int number = scanner.nextInt();

    boolean isGreaterThanZero = number > 0;
    boolean isDivisibleByThree = isGreaterThanZero && number % 3 == 0;
    boolean isDivisibleByFive = isGreaterThanZero && number % 5 == 0;
    boolean isDivisibleByThreeAndFive = isDivisibleByThree && isDivisibleByFive;

    if (isDivisibleByThreeAndFive)
        System.out.println("FizzBuzz");
    else if (isDivisibleByFive)
        System.out.printf("Fizz");
    else if (isDivisibleByThree)
        System.out.println("Buzz");
    else
        System.out.println(number);
}

}

2

Were you looking for commentary? Honestly, I think storing all of those booleans in variables is a waste of time. It is much more readable to just have the comparisons in the if/else statements. Also, you still have duplication. This is about the shortest way to write it:

// Honestly, do we even need this part?
// It is not common for the FizzBuzz project
if (number <= 0) {
  System.out.println(number);
  return;
}
var sb = new StringBuilder();
if (number % 5 == 0) {
  sb.append("Fizz");
}
if (number % 3 == 0) {
  sb.append("Buzz");
}
if (sb.isEmpty()) {
  sb.append(number);
}
System.out.println(sb.toString());